Hey I have this really strange issue.
I just bought a new laptop with a Ryzen 5 2500U & Radeon Vega 8. Upon factory settings, the border was centered and I was able to make the screen stretched. But after updating the radeon software to 19.9.2 I wasn't able to make the stretched and the 4:3 border isn't centered. I've tried restarting the laptop but nothing seems to be working.